3.3. Activating live migration

Now that you have several virtual machines running on each host, you can configure live migration. This provides a backup for the virtual machines - if they are running mission critical workloads, and cannot be powered off, you need to ensure that they must always have a host available to run on. Live migration allows you to move virtual machines to different hosts should the host they are running on experience scheduled or unscheduled downtime, without causing the virtual machine's operations to be suspended.
In this example, you will see how virtual machines are live migrated from one host to any of the available hosts in the same cluster.

To live migrate virtual machines

  1. Navigate to the Tree pane and click Expand All. Under Clusters, click the VMs icon. The list of available virtual machines is displayed in the Virtual Machines tab.
  2. Select one or more virtual machines and click Migrate. The Migrate Virtual Machines dialog displays.
    Live migrate a virtual machine to another host

    Figure 3.1. Live migrate a virtual machine to another host

    You can select a target host, or allow the system to automatically select one of the available hosts in the cluster. In this case, use the default option.
  3. Click OK. The virtual machines will live migrate to another host in the cluster.